git.m6w6.name Git - m6w6/ext-psi/blob - src/parser.h

   1 #ifndef _PSI_PARSER_H
   2 #define _PSI_PARSER_H
   3
   4 #include <stdio.h>
   5 #include <stdlib.h>
   6 #include <stdarg.h>
   7 #include <string.h>
   8
   9 #include <Zend/zend_types.h>
  10
  11 #include "parser_proc.h"
  12
  13 #define BSIZE 256
  14
  15 typedef int token_t;
  16
  17 /* in php_psi.h */
  18 size_t psi_t_alignment(token_t);
  19 size_t psi_t_size(token_t);
  20
  21 typedef struct PSI_Token {
  22         token_t type;
  23         unsigned line;
  24         size_t size;
  25         char text[1];
  26 } PSI_Token;
  27
  28 typedef struct decl_type {
  29         char *name;
  30         token_t type;
  31         struct decl_type *real;
  32         struct decl_struct *strct;
  33 } decl_type;
  34
  35 static inline decl_type *init_decl_type(token_t type, const char *name) {
  36         decl_type *t = calloc(1, sizeof(*t));
  37         t->type = type;
  38         t->name = strdup(name);
  39         return t;
  40 }
  41
  42 static inline decl_type *real_decl_type(decl_type *type) {
  43         while (type->real) {
  44                 type = type->real;
  45         }
  46         return type;
  47 }
  48
  49 static inline void free_decl_type(decl_type *type) {
  50         free(type->name);
  51         free(type);
  52 }
  53
  54 typedef struct decl_typedef {
  55         char *alias;
  56         decl_type *type;
  57 } decl_typedef;
  58
  59 static inline decl_typedef *init_decl_typedef(const char *name, decl_type *type) {
  60         decl_typedef *t = calloc(1, sizeof(*t));
  61         t->alias = strdup(name);
  62         t->type = type;
  63         return t;
  64 }
  65
  66 static inline void free_decl_typedef(decl_typedef *t) {
  67         free(t->alias);
  68         free_decl_type(t->type);
  69         free(t);
  70 }
  71
  72 typedef struct decl_typedefs {
  73         size_t count;
  74         decl_typedef **list;
  75 } decl_typedefs;
  76
  77 static inline decl_typedefs *add_decl_typedef(decl_typedefs *defs, decl_typedef *def) {
  78         if (!defs) {
  79                 defs = calloc(1, sizeof(*defs));
  80         }
  81         defs->list = realloc(defs->list, ++defs->count * sizeof(*defs->list));
  82         defs->list[defs->count-1] = def;
  83         return defs;
  84 }
  85
  86 static void free_decl_typedefs(decl_typedefs *defs) {
  87         size_t i;
  88
  89         for (i = 0; i < defs->count; ++i) {
  90                 free_decl_typedef(defs->list[i]);
  91         }
  92         free(defs->list);
  93         free(defs);
  94 }
  95
  96 typedef struct decl_var {
  97         char *name;
  98         unsigned pointer_level;
  99         unsigned array_size;
 100         struct decl_arg *arg;
 101 } decl_var;
 102
 103 static inline decl_var *init_decl_var(const char *name, unsigned pl, unsigned as) {
 104         decl_var *v = calloc(1, sizeof(*v));
 105         v->name = (char *) strdup((const char *) name);
 106         v->pointer_level = pl;
 107         v->array_size = as;
 108         return v;
 109 }
 110
 111 static inline void free_decl_var(decl_var *var) {
 112         free(var->name);
 113         free(var);
 114 }
 115
 116 typedef struct decl_struct_layout {
 117         size_t pos;
 118         size_t len;
 119 } decl_struct_layout;
 120
 121 static inline decl_struct_layout *init_decl_struct_layout(size_t pos, size_t len) {
 122         decl_struct_layout *l = calloc(1, sizeof(*l));
 123
 124         l->pos = pos;
 125         l->len = len;
 126         return l;
 127 }
 128
 129 static inline void free_decl_struct_layout(decl_struct_layout *l) {
 130         free(l);
 131 }
 132
 133 typedef struct decl_arg {
 134         decl_type *type;
 135         decl_var *var;
 136         decl_struct_layout *layout;
 137         struct let_stmt *let;
 138 } decl_arg;
 139
 140 static inline decl_arg *init_decl_arg(decl_type *type, decl_var *var) {
 141         decl_arg *arg = calloc(1, sizeof(*arg));
 142         arg->type = type;
 143         arg->var = var;
 144         return arg;
 145 }
 146
 147 static inline void free_decl_arg(decl_arg *arg) {
 148         free_decl_type(arg->type);
 149         free_decl_var(arg->var);
 150         if (arg->layout) {
 151                 free_decl_struct_layout(arg->layout);
 152         }
 153         free(arg);
 154 }
 155
 156 typedef struct decl_vars {
 157         decl_var **vars;
 158         size_t count;
 159 } decl_vars;
 160
 161 static inline decl_vars *init_decl_vars(decl_var *var) {
 162         decl_vars *vars = calloc(1, sizeof(*vars));
 163         if (var) {
 164                 vars->count = 1;
 165                 vars->vars = calloc(1, sizeof(*vars->vars));
 166                 vars->vars[0] = var;
 167         }
 168         return vars;
 169 }
 170
 171 static inline decl_vars *add_decl_var(decl_vars *vars, decl_var *var) {
 172         vars->vars = realloc(vars->vars, ++vars->count * sizeof(*vars->vars));
 173         vars->vars[vars->count-1] = var;
 174         return vars;
 175 }
 176
 177 static inline void free_decl_vars(decl_vars *vars) {
 178         size_t i;
 179
 180         for (i = 0; i < vars->count; ++i) {
 181                 free_decl_var(vars->vars[i]);
 182         }
 183         free(vars->vars);
 184         free(vars);
 185 }
 186
 187 typedef struct decl_args {
 188         decl_arg **args;
 189         size_t count;
 190 } decl_args;
 191
 192 static inline decl_args *init_decl_args(decl_arg *arg) {
 193         decl_args *args = calloc(1, sizeof(*args));
 194         if (arg) {
 195                 args->count = 1;
 196                 args->args = calloc(1, sizeof(*args->args));
 197                 args->args[0] = arg;
 198         }
 199         return args;
 200 }
 201
 202 static inline decl_args *add_decl_arg(decl_args *args, decl_arg *arg) {
 203         args->args = realloc(args->args, ++args->count * sizeof(*args->args));
 204         args->args[args->count-1] = arg;
 205         return args;
 206 }
 207
 208 static inline void free_decl_args(decl_args *args) {
 209         size_t i;
 210
 211         for (i = 0; i < args->count; ++i) {
 212                 free_decl_arg(args->args[i]);
 213         }
 214         free(args->args);
 215         free(args);
 216 }
 217
 218 typedef struct decl_abi {
 219         char *convention;
 220 } decl_abi;
 221
 222 static inline decl_abi *init_decl_abi(const char *convention) {
 223         decl_abi *abi = calloc(1, sizeof(*abi));
 224         abi->convention = strdup(convention);
 225         return abi;
 226 }
 227
 228 static inline void free_decl_abi(decl_abi *abi) {
 229         free(abi->convention);
 230         free(abi);
 231 }
 232
 233 typedef struct decl {
 234         decl_abi *abi;
 235         decl_arg *func;
 236         decl_args *args;
 237         struct impl *impl;
 238         struct {
 239                 void *sym;
 240                 void *info;
 241                 void **args;
 242         } call;
 243 } decl;
 244
 245 static inline decl* init_decl(decl_abi *abi, decl_arg *func, decl_args *args) {
 246         decl *d = calloc(1, sizeof(*d));
 247         d->abi = abi;
 248         d->func = func;
 249         d->args = args;
 250         return d;
 251 }
 252
 253 static inline void free_decl(decl *d) {
 254         free_decl_abi(d->abi);
 255         free_decl_arg(d->func);
 256         if (d->args) {
 257                 free_decl_args(d->args);
 258         }
 259         free(d);
 260 }
 261
 262 typedef struct decls {
 263         size_t count;
 264         decl **list;
 265 } decls;
 266
 267 static inline decls *add_decl(decls *decls, decl *decl) {
 268         if (!decls) {
 269                 decls = calloc(1, sizeof(*decls));
 270         }
 271         decls->list = realloc(decls->list, ++decls->count * sizeof(*decls->list));
 272         decls->list[decls->count-1] = decl;
 273         return decls;
 274 }
 275
 276 static inline void free_decls(decls *decls) {
 277         size_t i;
 278
 279         for (i = 0; i < decls->count; ++i) {
 280                 free_decl(decls->list[i]);
 281         }
 282         free(decls->list);
 283         free(decls);
 284 }
 285
 286 typedef struct decl_struct {
 287         char *name;
 288         decl_args *args;
 289         size_t size;
 290 } decl_struct;
 291
 292 static inline decl_struct *init_decl_struct(const char *name, decl_args *args) {
 293         decl_struct *s = calloc(1, sizeof(*s));
 294         s->name = strdup(name);
 295         s->args = args;
 296         return s;
 297 }
 298
 299 static inline void free_decl_struct(decl_struct *s) {
 300         if (s->args) {
 301                 free_decl_args(s->args);
 302         }
 303         free(s->name);
 304         free(s);
 305 }
 306
 307 typedef struct decl_structs {
 308         size_t count;
 309         decl_struct **list;
 310 } decl_structs;
 311
 312 static inline decl_structs *add_decl_struct(decl_structs *ss, decl_struct *s) {
 313         if (!ss) {
 314                 ss = calloc(1, sizeof(*ss));
 315         }
 316         ss->list = realloc(ss->list, ++ss->count * sizeof(*ss->list));
 317         ss->list[ss->count-1] = s;
 318         return ss;
 319 }
 320
 321 static inline void free_decl_structs(decl_structs *ss) {
 322         size_t i;
 323
 324         for (i = 0; i < ss->count; ++i) {
 325                 free_decl_struct(ss->list[i]);
 326         }
 327         free(ss->list);
 328         free(ss);
 329 }
 330
 331 typedef union impl_val {
 332         char cval;
 333         int8_t i8;
 334         uint8_t u8;
 335         short sval;
 336         int16_t i16;
 337         uint16_t u16;
 338         int ival;
 339         int32_t i32;
 340         uint32_t u32;
 341         long lval;
 342         int64_t i64;
 343         uint64_t u64;
 344         float fval;
 345         double dval;
 346         union {
 347                 zend_bool bval;
 348                 zend_long lval;
 349                 zend_string *str;
 350         } zend;
 351         void *ptr;
 352         uint8_t _dbg[sizeof(void *)];
 353 } impl_val;
 354
 355 static inline impl_val *deref_impl_val(impl_val *ret_val, decl_var *var) {
 356         unsigned i;
 357
 358         if (var->arg->var != var) for (i = 1; i < var->pointer_level; ++i) {
 359                 ret_val = *(void **) ret_val;
 360         }
 361         return ret_val;
 362 }
 363
 364 static inline impl_val *enref_impl_val(void *ptr, decl_var *var) {
 365         impl_val *val, *val_ptr;
 366         unsigned i;
 367
 368         if (!var->pointer_level && real_decl_type(var->arg->type)->type != PSI_T_STRUCT) {
 369                 return ptr;
 370         }
 371         val = val_ptr = calloc(var->pointer_level + 1, sizeof(void *));
 372         for (i = 1; i < var->pointer_level; ++i) {
 373                 val_ptr->ptr = (void **) val_ptr + 1;
 374                 val_ptr = val_ptr->ptr;
 375         }
 376         val_ptr->ptr = ptr;
 377         return val;
 378 }
 379 typedef struct impl_type {
 380         char *name;
 381         token_t type;
 382 } impl_type;
 383
 384 static inline impl_type *init_impl_type(token_t type, const char *name) {
 385         impl_type *t = calloc(1, sizeof(*t));
 386
 387         t->type = type;
 388         t->name = strdup(name);
 389         return t;
 390 }
 391
 392 static inline void free_impl_type(impl_type *type) {
 393         free(type->name);
 394         free(type);
 395 }
 396
 397 typedef struct impl_var {
 398         char *name;
 399         unsigned reference:1;
 400 } impl_var;
 401
 402 static inline impl_var *init_impl_var(const char *name, int is_reference) {
 403         impl_var *var = calloc(1, sizeof(*var));
 404         var->name = strdup(name);
 405         var->reference = is_reference;
 406         return var;
 407 }
 408
 409 static inline void free_impl_var(impl_var *var) {
 410         free(var->name);
 411         free(var);
 412 }
 413
 414 typedef struct impl_def_val {
 415         token_t type;
 416         char *text;
 417 } impl_def_val;
 418
 419 static inline impl_def_val *init_impl_def_val(token_t t, const char *text) {
 420         impl_def_val *def = calloc(1, sizeof(*def));
 421         def->type = t;
 422         def->text = strdup(text);
 423         return def;
 424 }
 425
 426 static inline void free_impl_def_val(impl_def_val *def) {
 427         free(def->text);
 428         free(def);
 429 }
 430
 431 typedef struct impl_arg {
 432         impl_type *type;
 433         impl_var *var;
 434         impl_def_val *def;
 435         impl_val val;
 436         zval *_zv;
 437 } impl_arg;
 438
 439 static inline impl_arg *init_impl_arg(impl_type *type, impl_var *var, impl_def_val *def) {
 440         impl_arg *arg = calloc(1, sizeof(*arg));
 441         arg->type = type;
 442         arg->var = var;
 443         arg->def = def;
 444         return arg;
 445 }
 446
 447 static inline void free_impl_arg(impl_arg *arg) {
 448         free_impl_type(arg->type);
 449         free_impl_var(arg->var);
 450         if (arg->def) {
 451                 free_impl_def_val(arg->def);
 452         }
 453         free(arg);
 454 }
 455
 456 typedef struct impl_args {
 457         impl_arg **args;
 458         size_t count;
 459 } impl_args;
 460
 461 static inline impl_args *init_impl_args(impl_arg *arg) {
 462         impl_args *args = calloc(1, sizeof(*args));
 463         if (arg) {
 464                 args->count = 1;
 465                 args->args = calloc(1, sizeof(*args->args));
 466                 args->args[0] = arg;
 467         }
 468         return args;
 469 }
 470
 471 static inline impl_args *add_impl_arg(impl_args *args, impl_arg *arg) {
 472         args->args = realloc(args->args, ++args->count * sizeof(*args->args));
 473         args->args[args->count-1] = arg;
 474         return args;
 475 }
 476
 477 static inline void free_impl_args(impl_args *args) {
 478         size_t i;
 479
 480         for (i = 0; i < args->count; ++i) {
 481                 free_impl_arg(args->args[i]);
 482         }
 483         free(args->args);
 484         free(args);
 485 }
 486
 487 typedef struct impl_func {
 488         char *name;
 489         impl_args *args;
 490         impl_type *return_type;
 491         unsigned return_reference:1;
 492 } impl_func;
 493
 494 static inline impl_func *init_impl_func(char *name, impl_args *args, impl_type *type, int ret_reference) {
 495         impl_func *func = calloc(1, sizeof(*func));
 496         func->name = strdup(name);
 497         func->args = args ? args : init_impl_args(NULL);
 498         func->return_type = type;
 499         func->return_reference = ret_reference;
 500         return func;
 501 }
 502
 503 static inline void free_impl_func(impl_func *f) {
 504         free_impl_type(f->return_type);
 505         free_impl_args(f->args);
 506         free(f->name);
 507         free(f);
 508 }
 509
 510 typedef struct let_calloc {
 511         size_t n;
 512         decl_type *type;
 513 } let_calloc;
 514
 515 static inline let_calloc *init_let_calloc(long n, decl_type *type) {
 516         let_calloc *alloc = calloc(1, sizeof(*alloc));
 517         alloc->n = n;
 518         alloc->type = type;
 519         return alloc;
 520 }
 521
 522 static inline void free_let_calloc(let_calloc *alloc) {
 523         free_decl_type(alloc->type);
 524         free(alloc);
 525 }
 526
 527 typedef struct let_func {
 528         token_t type;
 529         char *name;
 530         let_calloc *alloc;
 531 } let_func;
 532
 533 static inline let_func *init_let_func(token_t type, const char *name, let_calloc *alloc) {
 534         let_func *func = calloc(1, sizeof(*func));
 535         func->type = type;
 536         func->name = strdup(name);
 537         func->alloc = alloc;
 538         return func;
 539 }
 540
 541 static inline void free_let_func(let_func *func) {
 542         if (func->alloc) {
 543                 free_let_calloc(func->alloc);
 544         }
 545         free(func->name);
 546         free(func);
 547 }
 548
 549 typedef struct let_value {
 550         let_func *func;
 551         impl_var *var;
 552         unsigned is_reference:1;
 553 } let_value;
 554
 555 static inline let_value *init_let_value(let_func *func, impl_var *var, int is_reference) {
 556         let_value *val = calloc(1, sizeof(*val));
 557         val->is_reference = is_reference;
 558         val->func = func;
 559         val->var = var;
 560         return val;
 561 }
 562
 563 static inline void free_let_value(let_value *val) {
 564         if (val->func) {
 565                 free_let_func(val->func);
 566         }
 567         if (val->var) {
 568                 free_impl_var(val->var);
 569         }
 570         free(val);
 571 }
 572
 573 typedef struct let_stmt {
 574         decl_var *var;
 575         let_value *val;
 576         impl_arg *arg;
 577         impl_val out;
 578         void *ptr;
 579         void *mem;
 580 } let_stmt;
 581
 582 static inline let_stmt *init_let_stmt(decl_var *var, let_value *val) {
 583         let_stmt *let = calloc(1, sizeof(*let));
 584         let->var = var;
 585         let->val = val;
 586         return let;
 587 }
 588
 589 static inline void free_let_stmt(let_stmt *stmt) {
 590         free_decl_var(stmt->var);
 591         if (stmt->val) {
 592                 free_let_value(stmt->val);
 593         }
 594         free(stmt);
 595 }
 596
 597 struct set_value;
 598
 599 typedef struct set_func {
 600         token_t type;
 601         char *name;
 602         void (*handler)(zval *, struct set_value *set, impl_val *ret_val);
 603 } set_func;
 604
 605 static inline set_func *init_set_func(token_t type, const char *name) {
 606         set_func *func = calloc(1, sizeof(*func));
 607         func->type = type;
 608         func->name = strdup(name);
 609         return func;
 610 }
 611
 612 static inline void free_set_func(set_func *func) {
 613         free(func->name);
 614         free(func);
 615 }
 616
 617 typedef struct set_value {
 618         set_func *func;
 619         decl_vars *vars;
 620         struct {
 621                 struct set_value *set;
 622                 impl_val *val;
 623         } outer;
 624         struct set_value **inner;
 625         size_t count;
 626 } set_value;
 627
 628 static inline set_value *init_set_value(set_func *func, decl_vars *vars) {
 629         set_value *val = calloc(1, sizeof(*val));
 630         val->func = func;
 631         val->vars = vars;
 632         return val;
 633 }
 634 static inline set_value *add_inner_set_value(set_value *val, set_value *inner) {
 635         val->inner = realloc(val->inner, ++val->count * sizeof(*val->inner));
 636         val->inner[val->count-1] = inner;
 637         return val;
 638 }
 639
 640 static inline void free_set_value(set_value *val) {
 641         free_set_func(val->func);
 642         free_decl_vars(val->vars);
 643         if (val->inner) {
 644                 size_t i;
 645                 for (i = 0; i < val->count; ++i) {
 646                         free_set_value(val->inner[i]);
 647                 }
 648                 free(val->inner);
 649         }
 650         free(val);
 651 }
 652
 653 typedef struct set_stmt {
 654         impl_var *var;
 655         set_value *val;
 656         impl_arg *arg;
 657 } set_stmt;
 658
 659 static inline set_stmt *init_set_stmt(impl_var *var, set_value *val) {
 660         set_stmt *set = calloc(1, sizeof(*set));
 661         set->var = var;
 662         set->val = val;
 663         return set;
 664 }
 665
 666 static inline void free_set_stmt(set_stmt *set) {
 667         free_impl_var(set->var);
 668         free_set_value(set->val);
 669         free(set);
 670 }
 671
 672 typedef struct return_stmt {
 673         set_value *set;
 674         decl_arg *decl;
 675 } return_stmt;
 676
 677 static inline return_stmt *init_return_stmt(set_value *val) {
 678         return_stmt *ret = calloc(1, sizeof(*ret));
 679         ret->set = val;
 680         return ret;
 681 }
 682
 683 static inline void free_return_stmt(return_stmt *ret) {
 684         //free_set_func(ret->func);
 685         //free_decl_var(ret->decl);
 686         free_set_value(ret->set);
 687         free(ret);
 688 }
 689
 690 typedef struct free_call {
 691         char *func;
 692         decl_vars *vars;
 693         decl *decl;
 694 } free_call;
 695
 696 static inline free_call *init_free_call(const char *func, decl_vars *vars) {
 697         free_call *f = calloc(1, sizeof(*f));
 698         f->func = strdup(func);
 699         f->vars = vars;
 700         return f;
 701 }
 702
 703 static inline void free_free_call(free_call *f) {
 704         free(f->func);
 705         free(f);
 706 }
 707
 708 typedef struct free_calls {
 709         free_call **list;
 710         size_t count;
 711 } free_calls;
 712
 713 static inline free_calls *init_free_calls(free_call *f) {
 714         free_calls *fcs = calloc(1, sizeof(*fcs));
 715         if (f) {
 716                 fcs->count = 1;
 717                 fcs->list = calloc(1, sizeof(*fcs->list));
 718                 fcs->list[0] = f;
 719         }
 720         return fcs;
 721 }
 722
 723 static inline void free_free_calls(free_calls *fcs) {
 724         size_t i;
 725
 726         for (i = 0; i < fcs->count; ++i) {
 727                 free_free_call(fcs->list[i]);
 728         }
 729         free(fcs->list);
 730         free(fcs);
 731 }
 732
 733 static inline free_calls *add_free_call(free_calls *fcs, free_call *f) {
 734         fcs->list = realloc(fcs->list, ++fcs->count * sizeof(*fcs->list));
 735         fcs->list[fcs->count-1] = f;
 736         return fcs;
 737 }
 738
 739 typedef struct free_stmt {
 740         free_calls *calls;
 741 } free_stmt;
 742
 743 static inline free_stmt *init_free_stmt(free_calls *calls) {
 744         free_stmt *f = calloc(1, sizeof(*f));
 745         f->calls = calls;
 746         return f;
 747 }
 748
 749 static inline void free_free_stmt(free_stmt *f) {
 750         free_free_calls(f->calls);
 751         free(f);
 752 }
 753
 754 typedef struct impl_stmt {
 755         token_t type;
 756         union {
 757                 let_stmt *let;
 758                 set_stmt *set;
 759                 return_stmt *ret;
 760                 free_stmt *fre;
 761                 void *ptr;
 762         } s;
 763 } impl_stmt;
 764
 765 static inline impl_stmt *init_impl_stmt(token_t type, void *ptr) {
 766         impl_stmt *stmt = calloc(1, sizeof(*stmt));
 767         stmt->type = type;
 768         stmt->s.ptr = ptr;
 769         return stmt;
 770 }
 771
 772 static inline void free_impl_stmt(impl_stmt *stmt) {
 773         switch (stmt->type) {
 774         case PSI_T_LET:
 775                 free_let_stmt(stmt->s.let);
 776                 break;
 777         case PSI_T_SET:
 778                 free_set_stmt(stmt->s.set);
 779                 break;
 780         case PSI_T_RETURN:
 781                 free_return_stmt(stmt->s.ret);
 782                 break;
 783         case PSI_T_FREE:
 784                 free_free_stmt(stmt->s.fre);
 785                 break;
 786         }
 787         free(stmt);
 788 }
 789
 790 typedef struct impl_stmts {
 791         struct {
 792                 return_stmt **list;
 793                 size_t count;
 794         } ret;
 795         struct {
 796                 let_stmt **list;
 797                 size_t count;
 798         } let;
 799         struct {
 800                 set_stmt **list;
 801                 size_t count;
 802         } set;
 803         struct {
 804                 free_stmt **list;
 805                 size_t count;
 806         } fre;
 807 } impl_stmts;
 808
 809 static inline void *add_impl_stmt_ex(void *list, size_t count, void *stmt) {
 810         list = realloc(list, count * sizeof(list));
 811         ((void **)list)[count-1] = stmt;
 812         return list;
 813 }
 814
 815 static inline impl_stmts *add_impl_stmt(impl_stmts *stmts, impl_stmt *stmt) {
 816         switch (stmt->type) {
 817         case PSI_T_RETURN:
 818                 stmts->ret.list = add_impl_stmt_ex(stmts->ret.list, ++stmts->ret.count, stmt->s.ret);
 819                 break;
 820         case PSI_T_LET:
 821                 stmts->let.list = add_impl_stmt_ex(stmts->let.list, ++stmts->let.count, stmt->s.let);
 822                 break;
 823         case PSI_T_SET:
 824                 stmts->set.list = add_impl_stmt_ex(stmts->set.list, ++stmts->set.count, stmt->s.set);
 825                 break;
 826         case PSI_T_FREE:
 827                 stmts->fre.list = add_impl_stmt_ex(stmts->fre.list, ++stmts->fre.count, stmt->s.fre);
 828                 break;
 829         }
 830         free(stmt);
 831         return stmts;
 832 }
 833
 834 static inline impl_stmts *init_impl_stmts(impl_stmt *stmt) {
 835         impl_stmts *stmts = calloc(1, sizeof(*stmts));
 836         return add_impl_stmt(stmts, stmt);
 837 }
 838
 839 static inline void free_impl_stmts(impl_stmts *stmts) {
 840         size_t i;
 841
 842         for (i = 0; i < stmts->let.count; ++i) {
 843                 free_let_stmt(stmts->let.list[i]);
 844         }
 845         free(stmts->let.list);
 846         for (i = 0; i < stmts->ret.count; ++i) {
 847                 free_return_stmt(stmts->ret.list[i]);
 848         }
 849         free(stmts->ret.list);
 850         for (i = 0; i < stmts->set.count; ++i) {
 851                 free_set_stmt(stmts->set.list[i]);
 852         }
 853         free(stmts->set.list);
 854         for (i = 0; i < stmts->fre.count; ++i) {
 855                 free_free_stmt(stmts->fre.list[i]);
 856         }
 857         free(stmts->fre.list);
 858         free(stmts);
 859 }
 860
 861 typedef struct impl {
 862         impl_func *func;
 863         impl_stmts *stmts;
 864         decl *decl;
 865 } impl;
 866
 867 static inline impl *init_impl(impl_func *func, impl_stmts *stmts) {
 868         impl *i = calloc(1, sizeof(*i));
 869         i->func = func;
 870         i->stmts = stmts;
 871         return i;
 872 }
 873
 874 static inline void free_impl(impl *impl) {
 875         free_impl_func(impl->func);
 876         free_impl_stmts(impl->stmts);
 877         free(impl);
 878 }
 879
 880 typedef struct impls {
 881         size_t count;
 882         impl **list;
 883 } impls;
 884
 885 static inline impls *add_impl(impls *impls, impl *impl) {
 886         if (!impls) {
 887                 impls = calloc(1, sizeof(*impls));
 888         }
 889         impls->list = realloc(impls->list, ++impls->count * sizeof(*impls->list));
 890         impls->list[impls->count-1] = impl;
 891         return impls;
 892 }
 893
 894 static void free_impls(impls *impls) {
 895         size_t i;
 896
 897         for (i = 0; i < impls->count; ++i) {
 898                 free_impl(impls->list[i]);
 899         }
 900         free(impls->list);
 901         free(impls);
 902 }
 903
 904 typedef struct const_type {
 905         token_t type;
 906         char *name;
 907 } const_type;
 908
 909 static inline const_type *init_const_type(token_t type, const char *name) {
 910         const_type *ct = calloc(1, sizeof(*ct));
 911         ct->type = type;
 912         ct->name = strdup(name);
 913         return ct;
 914 }
 915
 916 static inline void free_const_type(const_type *type) {
 917         free(type->name);
 918         free(type);
 919 }
 920
 921 typedef struct constant {
 922         const_type *type;
 923         char *name;
 924         impl_def_val *val;
 925 } constant;
 926
 927 static inline constant *init_constant(const_type *type, const char *name, impl_def_val *val) {
 928         constant *c = calloc(1, sizeof(*c));
 929         c->type = type;
 930         c->name = strdup(name);
 931         c->val = val;
 932         return c;
 933 }
 934
 935 static inline void free_constant(constant *constant) {
 936         free_const_type(constant->type);
 937         free(constant->name);
 938         free_impl_def_val(constant->val);
 939         free(constant);
 940 }
 941
 942 typedef struct constants {
 943         size_t count;
 944         constant **list;
 945 } constants;
 946
 947 static inline constants *add_constant(constants *constants, constant *constant) {
 948         if (!constants) {
 949                 constants = calloc(1, sizeof(*constants));
 950         }
 951         constants->list = realloc(constants->list, ++constants->count * sizeof(*constants->list));
 952         constants->list[constants->count-1] = constant;
 953         return constants;
 954 }
 955
 956 static inline void free_constants(constants *c) {
 957         size_t i;
 958
 959         for (i = 0; i < c->count; ++i) {
 960                 free_constant(c->list[i]);
 961         }
 962         free(c->list);
 963         free(c);
 964 }
 965
 966 #define PSI_ERROR 16
 967 #define PSI_WARNING 32
 968 typedef void (*psi_error_cb)(int type, const char *msg, ...);
 969
 970 typedef struct decl_file {
 971         char *ln;
 972         char *fn;
 973 } decl_file;
 974
 975 static inline void free_decl_file(decl_file *file) {
 976         if (file->ln) {
 977                 free(file->ln);
 978         }
 979         if (file->fn) {
 980                 free(file->fn);
 981         }
 982         memset(file, 0, sizeof(*file));
 983 }
 984
 985 typedef struct decl_libs {
 986         void **dl;
 987         size_t count;
 988 } decl_libs;
 989
 990 static inline void free_decl_libs(decl_libs *libs) {
 991         if (libs->dl) {
 992                 size_t i;
 993                 for (i = 0; i < libs->count; ++i) {
 994                         if (libs->dl[i]) {
 995                                 dlclose(libs->dl[i]);
 996                         }
 997                 }
 998                 free(libs->dl);
 999         }
1000         memset(libs, 0, sizeof(*libs));
1001 }
1002
1003 static inline void add_decl_lib(decl_libs *libs, void *dlopened) {
1004         libs->dl = realloc(libs->dl, ++libs->count * sizeof(*libs->dl));
1005         libs->dl[libs->count-1] = dlopened;
1006 }
1007
1008 #define PSI_DATA(D) ((PSI_Data *) (D))
1009 #define PSI_DATA_MEMBERS \
1010         constants *consts; \
1011         decl_typedefs *defs; \
1012         decl_structs *structs; \
1013         decls *decls; \
1014         impls *impls; \
1015         union { \
1016                 decl_file file; \
1017                 decl_libs libs; \
1018         } psi; \
1019         psi_error_cb error
1020 typedef struct PSI_Data {
1021         PSI_DATA_MEMBERS;
1022 } PSI_Data;
1023
1024 static inline PSI_Data *PSI_DataExchange(PSI_Data *dest, PSI_Data *src) {
1025         if (!dest) {
1026                 dest = malloc(sizeof(*dest));
1027         }
1028         memcpy(dest, src, sizeof(*dest));
1029         memset(src, 0, sizeof(*src));
1030         return dest;
1031 }
1032
1033 static inline void PSI_DataDtor(PSI_Data *data) {
1034         if (data->consts) {
1035                 free_constants(data->consts);
1036         }
1037         if (data->defs) {
1038                 free_decl_typedefs(data->defs);
1039         }
1040         if (data->structs) {
1041                 free_decl_structs(data->structs);
1042         }
1043         if (data->decls) {
1044                 free_decls(data->decls);
1045         }
1046         if (data->impls) {
1047                 free_impls(data->impls);
1048         }
1049         free_decl_file(&data->psi.file);
1050 }
1051
1052 typedef struct PSI_Parser {
1053         PSI_DATA_MEMBERS;
1054         FILE *fp;
1055         unsigned flags;
1056         unsigned errors;
1057         void *proc;
1058         size_t line;
1059         token_t num;
1060         char *cur, *tok, *lim, *eof, *ctx, *mrk, buf[BSIZE];
1061 } PSI_Parser;
1062
1063 static inline PSI_Token *PSI_TokenAlloc(PSI_Parser *P) {
1064         PSI_Token *T;
1065         size_t token_len;
1066
1067         if (P->cur <= P->tok) {
1068                 return NULL;
1069         }
1070
1071         token_len = P->cur - P->tok;
1072
1073         T = calloc(1, sizeof(*T) + token_len);
1074         T->type = P->num;
1075         T->line = P->line;
1076         T->size = token_len;
1077         T->text[token_len] = 0;
1078         memcpy(T->text, P->tok, token_len);
1079
1080         return T;
1081 }
1082
1083 #define PSI_PARSER_DEBUG 0x1
1084
1085 PSI_Parser *PSI_ParserInit(PSI_Parser *P, const char *filename, psi_error_cb error, unsigned flags);
1086 void PSI_ParserSyntaxError(PSI_Parser *P, const char *fn, size_t ln, const char *msg, ...);
1087 size_t PSI_ParserFill(PSI_Parser *P, size_t n);
1088 token_t PSI_ParserScan(PSI_Parser *P);
1089 void PSI_ParserParse(PSI_Parser *P, PSI_Token *T);
1090 void PSI_ParserDtor(PSI_Parser *P);
1091 void PSI_ParserFree(PSI_Parser **P);
1092
1093 #endif